Given the high fixed cost base related to operating a steel mill, margins will also decline if a plant is not operated at optimal capacity.

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Though the seas are relatively calm, the waves are nevertheless too large for a safe mooring against the base of the structure to enable the BBC team to climb the 17m steel ladders up to the service deck.

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We all know what happens when steel is left exposed and unmaintained: Corrosion causes it to revert to its base elements as rust.

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